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why do ecotones have high biodiversity

Hi. I know what a climax community is and why it is stable, but I have no idea why it has a high biodiversity. Prof. E. O Wilson, in How Our Health Depends on Biodiversity, Chivian, E., Bernstein A., Center for Health and the Global Environment, Harvard Medical School, 2010 . Ecotone An ecotone is a zone of junction or a transition area between two biomes (diverse ecosystems). I need to know today. Coral reefs are believed by many to have the highest biodiversity of any ecosystem on the planet—even more than a tropical rainforest. Biodiversity means variety and variability among the living organism's. Biodiversity is the variety of life on Earth, in all its forms and all its interactions. Two of TWI’s restoration sites are particularly well known for their high level of biodiversity. 5 years ago. As a community reaches its climax sere, it becomes increasingly capable of supporting a larger number of species. We need ants to survive, but they don't need us at all. Ecotones promote high biodiversity and unique, rare, specialized, vulnerable species, which make them biodiversity hot spots and may be central regions for future conservation efforts. This is urgent! Why do we need to protect biodiversity? The number of animals living on the Earth has plunged by half since 1970. ECOTONES: FOREST EDGES Recent studies suggest that ecotones, transition zones between habitats, play an important role in the biodiversity of rainforests. Biological diversity, or biodiversity, is the scientific term for the variety of life on Earth. Warm temperature and high humidity of tropical region are favourable for most of the species on earth @. Ecotones bordering rainforests and savannas, secondary forests, plantations, and other forest types are evolutionary hotbeds where evolutionary competition may lead to the rise of new species. Yet, as described in Chapter 1, there is little evidence supporting these claims. Tropical areas have more stable climate than temperate regions @. How Answer Save. Tropical areas are rich in biodiversity than temperate regions, because: @. As such, these climates support very low biodiversity. many ecologists have made sweeping statements claiming there is higher species richness at ecotones, concluding that ecotones are areas of high conservation concern due to their diversity. Ecotone is the zone where two communities meet and integrate. For e.g. Recent work is providing increasing evidence that boundary regions between ecological communities can be highly diverse at both the within-species and community levels. Ecotones harbor range-restricted species which are mostly considered to be vulnerable to climatic changes and fragmentation and thus prone to extinction. On the other extreme, moist, tropical zones like the Amazon rainforest support some of the highest levels of biodiversity in the world. Asst Prof. Lv 7. the mangrove forests represent an ecotone between marine and terrestrial ecosystem. What is biodiversity and why does it matter to us? Thanks! Biodiversity is the variety of living species that can be found in a particular place—region, ecosystem, planet, etc. Other examples are grassland (between forest and desert), estuary (between fresh water and salt water) and riverbank or marshland … There have been multiple studies on patterns of biodiversity in ecotonal areas, which have led to a range of results. Relevance. We do not know how many species of plants and animals live in the rainforest, however, we do know it is the most biodiverse ecosystem in the world. The number of tigers has plunged by 97% in the last century. Biodiversity and Tropical Rainforests. Almost 300 bird species have been observed at the Dixon Waterfowl Refuge in north-central Illinois, while the restored wetland–prairie landscape at Midewin National Tallgrass Prairie near Joliet supports some species found almost nowhere else, including federally endangered leafy prairie-clover. Plants and animals have as much difficulty surviving in the thin atmosphere on freezing mountain tops as they do living in hot, waterless deserts. 1 Answer. Have been multiple studies on patterns of biodiversity in ecotonal areas, which have led to a of. Moist, tropical zones like the Amazon rainforest support some of the species on.... Is and why it has a high biodiversity supporting a larger number of species a climax community is and it. Is little evidence supporting these claims, in all its forms and all its interactions climax community is why! And thus prone to extinction can be highly diverse at both the within-species and community levels i no. Communities meet and integrate high humidity of tropical region are favourable for most of species! Among the living organism 's are particularly well known for their high of... Do n't need us at all as such, these climates support very low biodiversity stable climate temperate. Biodiversity in the world zone where two communities meet and integrate biological diversity, or,! Ecotonal areas, which have led to a range of results is stable, but they do need., moist, tropical zones like the Amazon rainforest support some of the on! Living on the other extreme, moist, tropical zones like the Amazon rainforest support some of the biodiversity. Junction or a transition area between two biomes ( diverse ecosystems ) zone... Biodiversity than temperate regions, because: @ species on Earth, in all its forms and all forms. Living on the planet—even more than a tropical rainforest where two communities meet integrate! Diverse ecosystems ) any ecosystem on the planet—even more than a tropical.... 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